i40iw: Call i40iw_cm_disconn on modify QP to disconnect

If QP modify to closing/terminate/error fails, connection is
not torn down as there is no corresponding asynchronous
event that will initiate the teardown.

Add explicit call to i40iw_cm_disconn if not waiting in
modify QP, otherwise schedule it in CM timer.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
index 1aa4110..28b3d02 100644 (file)
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -1027,7 +1027,19 @@ int i40iw_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
                                iwqp->hw_tcp_state = I40IW_TCP_STATE_CLOSED;
                                iwqp->last_aeq = I40IW_AE_RESET_SENT;
                                spin_unlock_irqrestore(&iwqp->lock, flags);
+                               i40iw_cm_disconn(iwqp);
                        }
+               } else {
+                       spin_lock_irqsave(&iwqp->lock, flags);
+                       if (iwqp->cm_id) {
+                               if (atomic_inc_return(&iwqp->close_timer_started) == 1) {
+                                       iwqp->cm_id->add_ref(iwqp->cm_id);
+                                       i40iw_schedule_cm_timer(iwqp->cm_node,
+                                                               (struct i40iw_puda_buf *)iwqp,
+                                                                I40IW_TIMER_TYPE_CLOSE, 1, 0);
+                               }
+                       }
+                       spin_unlock_irqrestore(&iwqp->lock, flags);
                }
        }
        return 0;